怎么使用httpclient中的put方法上傳大文件? 如果是一次性讀到內(nèi)存中發(fā)送的話，內(nèi)存很容易撐爆，所以肯定是用邊讀邊發(fā)的方式，或者使用分片上傳。現(xiàn)在想知道怎么使用httpclient實(shí)現(xiàn)邊讀邊傳，使用jdk自帶的方法已經(jīng)知道怎么實(shí)現(xiàn)了。 public static void putRequest(String uri, Map<String, String> headers, File file) { URLConnection urlconnection = null; BufferedOutputStream bos = null; BufferedInputStream bis = null; try { URL url = new URL(uri); urlconnection = url.openConnection(); urlconnection.setDoOutput(true); urlconnection.setDoInput(true); if (urlconnection instanceof HttpURLConnection) { try { ((HttpURLConnection) urlconnection).setRequestMethod("PUT"); for(Map.Entry<String, String> entry : headers.entrySet()) { ((HttpURLConnection) urlconnection).setRequestProperty(entry.getKey(), entry.getValue()); } ((HttpURLConnection) urlconnection).connect(); } catch (ProtocolException e) { e.printStackTrace(); } } bos = new BufferedOutputStream(urlconnection.getOutputStream()); bis = new BufferedInputStream(new FileInputStream(file)); byte[] buff = new byte[1024 * 8]; int i; while ((i = bis.read(buff)) != -1) { bos.write(buff, 0, i); } System.out.println(((HttpURLConnection) urlconnection).getResponseMessage()); } catch (Exception e) { e.printStackTrace(); } finally { IOUtils.closeQuietly(bis); IOUtils.closeQuietly(bos); ((HttpURLConnection) urlconnection).disconnect(); } }